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RD Sharma Solutions Class 8 Mathematics Solutions for Surface Area and Volume of Right Circular Cylinder Exercise 22.2 in Chapter 22 - Surface Area and Volume of Right Circular Cylinder
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Find the (i) curved surface area (ii) total surface area and (iii) volume of a right circular cylinder whose height is 15 cm and the radius of the base is 7 cm.
Answer:
We have,
Height of cylinder = 15 cm
Radius of base = 7 cm
(i) Curved surface area = 2πrh
= 2 × 22/7 × 7 × 15
= 660 cm2
(ii) Total surface area = 2πr(h+r)
= 2 × 22/7 × 7 (15+7)
= 968 cm2
(iii) Volume of cylinder = πr2h
= 22/7 × 7 × 7 × 15
= 2310 cm3
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